Reversible hard-center frog.



T. F. McBVOY & 0. J. LEPPBRD. REVERSIBLE HARD CENTER FROG.

APPLICATION FILED MAY 5, 1913'.

Patented Sept. 9, 1913.

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BIA PLANOORAPH C0.. WASHINGTON, D c- TIMOTHY llIoEVOY AND CHARLES J.LEPPERD, 0F POTTSTOWN, PENNSYLVANIA.

REVERSIBLE HARD-CENTER FROG.

To all whom it may concern:

Be it known that we, TIMOTHY F. Mo- EvoY and CHARLES J. Lnrrnnn,citizens of the United States, residing at Pottstown, in the county ofMontgomery and State of Pennsylvania, have invented certain new anduseful Improvements in Reversible Hard-Center Frogs, of which thefollowing is a specification.

()ur invention relates to improvements in reversible hard center frogs,the object of the invention being to provide a frog of this characterwhich may be reversed in its entirety or any portion thereof reversedwhen worn.

A further object is to provide a hard center frog in which the hardcenter and the rails and parts connected therewith are constructeduniformly on opposite sides, so that any one or all of said parts may bereversed, and operate with equal efliciency in either position. 7

lVith these and other objects in view, the invention consists in certainnovel features" of construction and combinations and arrangements ofparts as will be more fully hereinafter described and pointed out in theclaims.

In the accompanying drawings; Figure 1 is a plan view illustrating ourimproved frog. Fig. 2 is a view in section on an enlarged scale on theline 22 of Fig. 1. Fig. 3 is a similar view in section on an enlargedscale on the line 33 of Fig. 1. Fig. 4 is a similar view in section onan enlarged scale on the line t-t of Fig. 1. Fig. 5 is a similar view insection on an enlarged scale on the line 55 of Fig- 1. Fig. 6 is asimilar view in section on an enlarged scale on the line 66 of Fig. 1.Fig. 7 is a similar view in section on an enlarged scale on the line 77of Fig. 1.

1 represents the hard center of our improved frog which is securedbetween wing rails 2 projecting laterally in both-directions from thethroat 3 of the frog. The center 1 at one end is provided with arelatively narrow longitudinal extension 4: clamped between the usualdiverging track rails '5. These rails 5 and the extension 4: havingregistering recesses 6 in which relatively short plates 7 are secured byrivets 8.

Throughout the entire length of the frog, it is shaped alike on itsupper and lower surfaces. That is to say, it is provided on top andbottom with integral rail support- Specification of Letters Patent.

Application filed May 5, 1913.

Patented Sept. 9, 1913. Serial No. 765,565.

ing points 9 and longitudinal diverging flange ways 10, with treadreceiving -portions 11 forming the outer walls of said flange ways, andfitting within longitudinal recesses 12 in rails 2. A series of bolts 13are projected through alined openings in the center 1 and rails 2throughout the length of the body portion of the center, and these boltsare also projectedthrough bars 141 which are located against theouterfaces of the webs 15 of rails 2. Nuts 16 are screwed onto the boltsand are preferably held by any improved form of nut locking washer 17.Blocks 18 are located between the rails 5 and rails 2 at theeXtreme endsof the latter, and bolts 19 are projected through registering openingsin rails 2, blocks 18, rails 5, and extension at, and are secured inplace by nuts 20. i a 1 By reference particularly to the cross sectionsin Figs. 2 to 7 inclusive, it will be noted that the rails 2 areprecisely alike at top and bottom throughout their ends.

These rails 2 are formed with heads 21 at top and bottom connected by arelatively thin web 15. The inner portions of the heads at top andbottom throughout a con siderable portion of the length of the frog, areformed wit-h the recesses 12 above re ferred to, to accommodate thetread portions 11 of the hard center 1. In other words, the shape of thefaces of the rails at their point of contact with the center 1, conformsin shape to the shape of the center, and which shape gradually changesto form a firm and rigid interlocking contact as clearly illustrated incross section.

As the hard center 1 and the rails 2, as well as the rails 5, are alikeat top and bottom, they can be separably reversed or the frog as anentirety may be reversed and operate with equal efficiency. This is adistinct advantage because it frequently happens that only one of theparts becomes worn and this part may be reversed. If on the other hand,the entire frog is worn on its upper surface, it may be reserved, and inany event, the reversal of the several parts is a matter of judgment,and our improvements result in a'great saving to the railroad.

Various slight changes might be made in the general form and arrangementof parts described without departing from our invention, and hence we donot limit ourselves to the precise details set forth, but

consider ourselves at liberty to make such changes andalterations asfairly fall with.- in the spirit and scope of the appended claims.

Having thus described our invention, what we claim as new anddesire tosecure by Letters Patent is:

l. A railroad frog comprising a hard center, shaped alike on its upperand lower faces, and rails secured tothe opposite sidesof the, center,said; railsthroughouta por tion'; Ofi their length recessedto=receivethe center. therein, substantially as described:

A; railroad; frog comprising a hard center, shaped alike on its upp er:and lower faces, rails secured to opposite sidesot'ithe center, saithrails SllEtPOCll alikeat: top and bottom, and: said rails throughout aportion ofitheirlength recessed to receive the center therein,substantially as descrlbed.

x31 A- railroad; frog comprising whard center, shaped; alike on itsuppen and lower 'iaces, and :rails secured !to the opposite sides of,the;- center,.. said'i rails throughout a portionofxthein lengthrecessed toreceive thecentcr; therein,.saidcenter having anextension'at. one end, and rails secureditoisaid extension, substantially asdescribed.

LIA railroad. frog comprising a hard centenshaped alike oil-its upperandlower. :faces rails secured ito oppositesides of the center, saidrails shaped alike at top and bottom, said rails throughout a portionoftheir. length recessed to receive the center therein, said 1 center.having an extension at= one-end; and :rails secured lto. .saidextension, substantially as described.

5. A railroad; frog comprising aa hard center, shaped alike on its upperand lower faces, rails shaped alike onrtheir upper and lower faces andrecessed to receive the frog, an 6Xt61lSl0I1-OILOI1G61'1C1 of said frog,rails at opposite sides of said extension, blocks bQ-tWfiGlLthB.diverging ends of the first-mentioned rails and the last-mentionedrails, and bolts projected through the first-mentioned rails and thecenter and through the first-mentioned rails, the last-mentioned railsand the extensionyandi nuts on said bolts, substantially as desoribedl6. A railroad frog comprising a hard center, shaped aliheon.its-upperand loweri faces, rails 'sha-pedalike on their upper; andlower faces and recessedto receive the frog, an extension on: one en'dof said frog, rails at opposite sides ofsaid extension,.. blocks betweenthe diverging :ends of: the firstementione'cl rails and, the lastmentioned rails, and boltsprojected through the first-mentionedrails-andathe center andithrough the first'mentioned: rails, thelt'Stll'lBH'tlOl'lG'Cl' rails and the extension, nuts 011 said bolts,saidlfirstmientioned rails-s having. heads at both a upper and loweredges with relatively narrowwebs 4 connecting: them, and barslocatediagainst the outer faces" of. saidwebs andthrough whichsaidboltsare projected, substantially as I described.

In testimony whereof we have signed'eour names" to this specification.in the-presence of two subscribing witnesses;

TIMOTHY; MGEVOY.

CHARLES J.u LEPBERD.

WVitnesses MARY E. DITTUS, CHAS: E; Pours.

Copies of;-this patent may be obtained'for five cents each, byaddressingfthB "flommissioner of Patents;- Washington;:D.'-G..

